CN104753131B - A kind of wireless charging method and system - Google Patents
A kind of wireless charging method and system Download PDFInfo
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- CN104753131B CN104753131B CN201510084502.1A CN201510084502A CN104753131B CN 104753131 B CN104753131 B CN 104753131B CN 201510084502 A CN201510084502 A CN 201510084502A CN 104753131 B CN104753131 B CN 104753131B
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Abstract
The invention provides a kind of wireless charging method and system, channel condition information based on wireless charging unit divides into groups to multiple radio frequency units, often organized the channel calibration parameter of radio frequency units in conjunction with local calibration information, and calibrate to obtain down channel according to the up channel of channel calibration parameter to radio frequency units.Then the match parameter of each radio frequency units is obtained based on channel condition information and channel calibration parameter, according to match parameter, precoding is carried out to the energy signal in radio frequency units, energy signal after precoding autofocuses on the wireless charging unit position that certification is passed through after transmission, energy signal in wireless charging unit is focused on strengthen, therefore when radio frequency units and wireless charging cell distance far away when, wireless charging unit still can receive stronger electric energy and be supplied to electronic equipment, thus realize providing electric energy to the long-range charging of electronic equipment and for electronic equipment in movement.
Description
Technical field
The present invention relates to wireless charging technical field, more particularly, relate to a kind of wireless charging method and system.
Background technology
Along with the development of mobile communication technology, various mobile electronic device emerges in an endless stream, and brings great convenience to the work of user and life.But the battery durable of these mobile electronic devices is limited in one's ability, thus greatly limit Consumer's Experience, even very large puzzlement can be brought to user.
For addressing this problem, generally adopt wireless charging device to charge to mobile electronic device at present, wherein wireless charging device is a kind of when not by electric wire, the equipment utilizing magnet immediately for more than one mobile electronic device charges.Its operation principle is: first magnetic field provides equipment utilization electric current to be the magnetic field that wireless charging unit place environment changes by its interior loop; Magnetic field conversion is converted to electric current, and then completes the wireless charging to mobile electronic device after being arranged in the coil-induced environment changes of magnetic field residing for it of the wireless charging device of mobile electronic device by next.
But, because wireless charging device has great impact to the effect that induced field changes, it requires that wireless charging device and magnetic field provide the distance between equipment very near, even mutually press close to, when both distances are slightly far away, coil in wireless charging device cannot sense changes of magnetic field, thus cannot charge to mobile electronic device.
Summary of the invention
In view of this, the object of this invention is to provide a kind of wireless charging method and system, for carrying out long-range charging to electronic equipment, and can the electronic equipment in movement be charged.
To achieve these goals, the invention provides following technical scheme:
The invention provides a kind of wireless charging method, be applied in wireless charging system, described wireless charging method comprises:
Obtain the channel condition information of the up channel of wireless charging unit in described wireless charging system and the identity information of described wireless charging unit;
Based on described channel condition information, the multiple radio frequency units in described wireless charging system are divided into groups, and the channel calibration parameter of radio frequency units is often organized based on described channel condition information and local calibration information, according to described channel calibration parameter, calibrate to obtain down channel to the up channel of described radio frequency units;
The match parameter of the radio frequency units group into each described wireless charging Unit selection is obtained based on described channel condition information and described channel calibration parameter, the wherein said match parameter obtaining each described radio frequency units based on described channel condition information and described channel calibration parameter, comprising:
According to formula
Obtain the match parameter of each described radio frequency units, wherein ω
ibe the match parameter of i-th radio frequency units, p
ibe the transmitting power of i-th radio frequency units, h
ifor described wireless charging unit is to the channel condition information of the down channel of i-th radio frequency units, N is total number of radio frequency units described in described wireless charging system;
According to the identity information of described wireless charging unit, search the described wireless charging unit that certification is passed through;
According to described match parameter, precoding is carried out to the energy signal in described radio frequency units, through the wireless charging unit position that the energy signal of precoding will autofocus on certification and passes through after transmission, with the electromagnetic wave energy making described wireless charging unit extract transmission from the energy signal after precoding, and described electromagnetic wave energy is converted to electric energy for electronic equipment and charges.
Preferably, the channel condition information of the up channel of wireless charging unit and the identity information of described wireless charging unit in the described wireless charging system of described acquisition, comprising:
Pilot frequency sequence is extracted from the wireless channel detectable signal that described wireless charging unit sends;
From described pilot frequency sequence, described channel condition information is estimated by algorithm for estimating;
Utilize signal sorting algorithm and in conjunction with described channel condition information, from described wireless channel detectable signal, extract pseudo random sequence, described pseudo random sequence is for representing the identity information of described wireless charging unit.
Preferably, often organized the channel calibration parameter of radio frequency units based on described channel condition information and local calibration information, being comprised:
Often to organize a radio frequency units in radio frequency units as with reference to radio frequency units, the described channel condition information with reference to remaining described radio frequency units in radio frequency units and corresponding group and local calibration information are compared, is often organized the channel calibration parameter of radio frequency units.
The present invention also provides a kind of wireless charging system, and described wireless charging system comprises: at least one wireless charging unit, centralized control unit and multiple radio frequency units; Wherein,
Described wireless charging unit, for sending the wireless channel detectable signal of up channel, described wireless channel detectable signal is used to indicate the channel condition information of described up channel and the identity information of described wireless charging unit;
Described radio frequency units, for the identity information of the channel condition information and described wireless charging unit that obtain described up channel from described wireless channel detectable signal, and for the match parameter sent according to described centralized control unit, precoding is carried out to the energy signal in described radio frequency units, through precoding energy signal after transmission by autofocus on the wireless charging unit position passed through of certification, with the electromagnetic wave energy making described wireless charging unit extract transmission from the energy signal after precoding, and described electromagnetic wave energy is converted to electric energy for electronic equipment and charges,
Described centralized control unit, for obtaining the match parameter of the radio frequency units group into each described wireless charging Unit selection based on described channel condition information and channel calibration parameter, and the identity information of foundation wireless charging unit, search the described wireless charging unit that certification is passed through, and for dividing into groups to described multiple radio frequency units based on described channel condition information and local calibration information, the channel calibration parameter often being organized radio frequency units calibrates to obtain down channel to control each described radio frequency units according to the up channel of described channel calibration parameter to self,
The wherein said match parameter obtaining each described radio frequency units based on described channel condition information and described channel calibration parameter, comprising:
According to formula
Obtain the match parameter of each described radio frequency units, wherein ω
ibe the match parameter of i-th radio frequency units, p
ibe the transmitting power of i-th radio frequency units, h
ifor described wireless charging unit is to the channel condition information of the down channel of i-th radio frequency units, N is total number of radio frequency units described in described wireless charging system.
Preferably, described radio frequency units comprises: radio signal reception module, radio channel characteristic extraction module, synchronization module, calibrate module, energy send pretreatment module, radio energy signal emission module, supply module and control interface module; Wherein,
Described radio signal reception module, for receive described wireless charging unit send wireless channel detectable signal;
Described radio channel characteristic extraction module, for pilot frequency sequence from described wireless channel detectable signal, from described pilot frequency sequence, described channel condition information is estimated by algorithm for estimating, and for utilizing signal sorting algorithm and in conjunction with described channel condition information, from described wireless channel detectable signal, extract pseudo random sequence, described pseudo random sequence is for representing the identity information of described wireless charging unit;
Described synchronization module, for the multiple described radio frequency units of Timing Synchronization;
Described calibrate module, for according to described channel calibration parameter, calibrates to obtain down channel to the up channel of described radio frequency units;
Described energy sends pretreatment module, for carrying out precoding according to described match parameter to the energy signal in described radio frequency units, obtains the energy signal after precoding;
Described radio energy signal emission module, for sending the energy signal after precoding;
Described control interface module, for carrying out information interaction with described centralized control unit;
Described supply module, for providing electric energy for the modules in described radio frequency units.
Preferably, described centralized control unit comprises: multiple control interface module, joint channel calibration module, grouping and Cooperation controlling module, jointly control module and supply module; Wherein,
Each described control interface module, for carrying out information interaction with described radio frequency units, and the quantity of described control interface module is more than or equal to the quantity of described radio frequency units;
Described joint channel calibration module, for often being organized the channel calibration parameter of radio frequency units based on channel condition information and local calibration information;
Described grouping and Cooperation controlling module, for dividing into groups to described multiple radio frequency units based on described channel condition information;
Describedly jointly control module, for exchanging the data in described radio frequency units and described centralized control unit, process and control, to obtain the described wireless charging unit that each described wireless charging unit and the corresponding match parameter often organizing radio frequency units and certification are passed through;
Described supply module, for providing electric energy to the modules in described centralized control unit.
Preferably, described wireless charging unit comprises: radio signal sending module, baseband processing module, data information management module, radio signal reception module, energy conversion module, energy management module and Energy transmission interface module; Wherein,
Described data information management module, for splicing identity information and the pilot frequency sequence of described wireless charging unit, obtains digital signal;
Described baseband processing module, for carrying out base band signal process to digital signal, obtain the wireless channel detectable signal of up channel, and trigger described radio signal sending module and send described wireless channel detectable signal, described wireless channel detectable signal is used to indicate the channel condition information of described up channel and the identity information of described wireless charging unit;
Described radio signal reception module, for receiving the energy signal after precoding;
Described energy conversion module, for extracting electromagnetic wave energy from the energy signal after precoding, and carrying out rectification by described electromagnetic wave energy, obtaining direct current;
Described energy management module, for managing described direct current and store;
Described Energy transmission interface module, for described galvanic Part I is supplied to described radio signal sending module, and is supplied to mobile electronic device by described galvanic Part II and charges.Compared with prior art, advantage of the present invention is as follows:
Wireless charging method provided by the invention and system, based on channel condition information, the multiple radio frequency units in wireless charging system are divided into groups, often organized the channel calibration parameter of radio frequency units in conjunction with local calibration information, and calibrate to obtain down channel according to the up channel of channel calibration parameter to radio frequency units.Then the match parameter of the radio frequency units group into each wireless charging Unit selection is obtained based on channel condition information and channel calibration parameter, according to match parameter, precoding is carried out to the energy signal in radio frequency units, energy signal after precoding autofocuses on the wireless charging unit position that certification is passed through after transmission, energy signal in wireless charging unit is focused on strengthen, therefore when radio frequency units and wireless charging cell distance far away when, wireless charging unit still can receive stronger electric energy and be supplied to electronic equipment, thus the long-range charging realized electronic equipment.
And the channel calibration parameter that the present invention can obtain based on channel condition information is calibrated up channel, make radio frequency units that the channel condition information of real-time up channel can be utilized to obtain the channel condition information of down channel, then each radio frequency units utilizes the channel condition information of down channel to send the energy signal after precoding to wireless charging unit, make the energy signal in wireless charging unit focus on further to strengthen, thus electric energy can be provided for the wireless charging unit in movement and connected electronic equipment thereof.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The flow chart of the wireless charging method that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the flow chart of step 101 in wireless charging method shown in Fig. 1;
The structural representation of the wireless charging system that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is the structural representation of radio frequency units 13 in wireless charging system shown in Fig. 3;
Fig. 5 is the structural representation of centralized control unit 12 in wireless charging system shown in Fig. 3;
Fig. 6 is the structural representation of wireless charging unit 11 in wireless charging system shown in Fig. 3;
Fig. 7 is the part-structure schematic diagram of radio signal reception module and radio channel characteristic extraction module in radio frequency units;
The structural representation of certification and synchronization module in the radio frequency units that Fig. 8 provides for the embodiment of the present invention;
Fig. 9 is the structural representation of radio energy signal emission module in radio frequency units in the embodiment of the present invention;
The structural representation of radio signal sending module in the wireless charging unit that Figure 10 provides for the embodiment of the present invention;
The structural representation of radio reception module and energy conversion module in the wireless charging unit that Figure 11 provides for the embodiment of the present invention;
The structural representation of grouping and Cooperation controlling module in the centralized control unit that Figure 12 provides for the embodiment of the present invention;
The structural representation of joint channel calibration module in the centralized control unit that Figure 13 provides for the embodiment of the present invention;
The structural representation of module is jointly controlled in the centralized control unit that Figure 14 provides for the embodiment of the present invention.
Embodiment
The present invention is understood better in order to make those skilled in the art, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, it illustrates a kind of flow chart of the wireless charging method that the embodiment of the present invention provides, this wireless charging method is applied in wireless charging system, can comprise the following steps:
101: the channel condition information of up channel and the identity information of wireless charging unit that obtain wireless charging unit in wireless charging system.In embodiments of the present invention, the channel condition information of the up channel of wireless charging unit and the identity information of wireless charging unit are carried in the wireless channel detectable signal of the up channel that wireless charging unit sends, wireless channel detectable signal is sent in radio frequency units, makes radio frequency units can know the channel condition information of the up channel of wireless charging unit in real time.
In embodiments of the present invention, wireless channel detectable signal can be sent periodically in radio frequency units, so that radio frequency units can receive wireless channel detectable signal in time, wherein periodically sending can be periodically send to schedule, as sent a wireless channel detectable signal at interval of 10ms.
Radio frequency units is after receiving wireless channel detectable signal, and need from wireless channel detectable signal, extract up channel channel condition information and identity information, its process can as shown in Figure 2, comprise the following steps:
1011: from the wireless channel detectable signal that wireless charging unit sends, extract pilot frequency sequence.
1012: from pilot frequency sequence, estimate channel condition information by algorithm for estimating.Wherein pilot frequency sequence is used to indicate the channel condition information of up channel, can be estimated amplitude information and the phase information of channel condition information by existing algorithm for estimating from pilot frequency sequence.
1013: utilize signal sorting algorithm and in conjunction with channel condition information, from wireless channel detectable signal, extract pseudo random sequence, pseudo random sequence is for representing the identity information of wireless charging unit.
In embodiments of the present invention, pseudo random sequence is that wireless charging system is allocated in advance to wireless charging unit, and pseudo random sequence in each wireless charging unit is different, distinguishes wireless charging unit with this.And for the pseudo random sequence of the identity information that represents wireless charging unit in wireless channel detectable signal with channel condition information convolution, from wireless channel detectable signal, extract pseudo random sequence if therefore want, by existing signal sorting algorithm, pseudo random sequence can be separated with channel condition information, thus obtain the pseudo random sequence of the identity information representing wireless charging unit.
102: based on channel condition information, the multiple radio frequency units in wireless charging system are divided into groups, and the channel calibration parameter of radio frequency units is often organized based on channel condition information and local calibration information, according to channel calibration parameter, calibrate to obtain down channel to the up channel of radio frequency units.
In embodiments of the present invention, based on channel condition information to the feasible pattern that multiple radio frequency units is divided into groups can be: the channel quality quality based on the up channel indicated by channel condition information is divided into groups to multiple radio frequency units, as radio frequency units corresponding for better channel quality is divided into one group.Radio frequency units corresponding for poor channel quality can also be abandoned in grouping process further, the workload of process can be reduced like this in subsequent processes, not only reduce complexity but also avoid the wasting of resources.
Often organized in the channel calibration parameter of radio frequency units based on channel condition information and local calibration information, need to choose a radio frequency units as with reference to radio frequency units often organizing in radio frequency units, compare with reference to the channel condition information of remaining radio frequency units in radio frequency units and corresponding group and local calibration information, often organized the channel calibration parameter of radio frequency units.Wherein channel calibration parameter is used to indicate the channel condition information contrast situation in group between radio frequency units, therefore can be as the criterion with the channel condition information with reference to radio frequency units, in the channel calibration parameter of the reduced parameter will obtained when the channel condition information of remaining radio frequency units is consistent with the channel condition information with reference to radio frequency units in group as each radio frequency units.
Local calibration information is for transmitting element with the reference radio frequency units in all radio frequency units, residue radio frequency units is that receiving element is to obtain the local calibration information of receiving element relative to transmitting element, the like until obtain the local calibration information of each radio frequency units in all radio frequency units relative to other radio frequency units, and local calibration information obtains when wireless charging system is opened.
In first group, have 4 radio frequency units, be designated as radio frequency units 1, radio frequency units 2, radio frequency units 3 and radio frequency units 4 respectively, and radio frequency units 1 is with reference to radio frequency units.The local calibration information of radio frequency units 2 to 4 relative to radio frequency units 1 is compared with the channel condition information of radio frequency units 1 respectively, obtains the reduced parameter of the channel calibration parameter as each radio frequency units.
Accordingly, the down channel of each radio frequency units can be then: h
i=h '
iθ
ican be calibrated the up channel of radio frequency units by this formula, wherein h
ibe the channel condition information of the down channel of i-th radio frequency units, h '
ibe the channel condition information of the up channel of i-th radio frequency units, θ
iit is the channel calibration parameter of i-th radio frequency units.
Radio frequency units can be made when sending the energy signal after precoding to wireless charging unit by above-mentioned calibrating mode, the down going channel of multiple radio frequency units can be mated mutually.Still for above-mentioned 4 radio frequency units, if 4 radio frequency units send the energy signal after precoding to a wireless charging unit simultaneously, then the down going channel of above-mentioned 4 radio frequency units is followed successively by: respective data feedback channel antenna and [1, θ
2, θ
3, θ
4] in corresponding element be multiplied, what namely can compensate that up-downgoing channel itself brings does not mate.
103: obtain the radio frequency units group into each described wireless charging Unit selection based on channel condition information and channel calibration parameter.Wherein centralized control unit can be each wireless charging Unit selection radio frequency units group, and selected radio frequency units group be through step 102 divide into groups after the radio frequency units group obtained.
In embodiments of the present invention can according to following formula:
104: according to the identity information of wireless charging unit, search the wireless charging unit that certification is passed through.Its process can be: whether centralized control unit is searched obtained pseudo random sequence and be present in the local legal identity information list stored, if existed, judge that the authentication of wireless charging unit is passed through, otherwise judge that the authentication of wireless charging unit is not passed through.
105: according to match parameter, precoding is carried out to the energy signal in radio frequency units, through the wireless charging unit position that the energy signal of precoding will autofocus on certification and passes through after transmission, with the electromagnetic wave energy making described wireless charging unit extract transmission from the energy signal after precoding, and described electromagnetic wave energy is converted to electric energy for electronic equipment and charges.
As can be seen from technique scheme, the wireless charging method that the embodiment of the present invention provides, based on channel condition information, the multiple radio frequency units in wireless charging system are divided into groups, often organized the channel calibration parameter of radio frequency units in conjunction with local calibration information, and according to channel calibration parameter, the up channel of radio frequency units is calibrated to obtain down channel.Then the match parameter of the radio frequency units group into each wireless charging Unit selection is obtained based on channel condition information and channel calibration parameter, according to match parameter, precoding is carried out to the energy signal in radio frequency units, energy signal after precoding autofocuses on the wireless charging unit position that certification is passed through after transmission, energy signal in wireless charging unit is focused on strengthen, therefore when radio frequency units and wireless charging cell distance far away when, wireless charging unit still can receive stronger electric energy and be supplied to electronic equipment, thus the long-range charging realized electronic equipment.
And the channel calibration parameter that the embodiment of the present invention can obtain based on channel condition information is calibrated up channel, make radio frequency units that the channel condition information of real-time up channel can be utilized to obtain the channel condition information of down channel, then each radio frequency units utilizes the channel condition information of down channel to send the energy signal after precoding to wireless charging unit, make the energy signal in wireless charging unit focus on further to strengthen, thus electric energy can be provided for the electronic equipment in movement.
Illustrate a bit here: multiple radio frequency units and centralized control unit form transmitting terminal jointly, wireless charging unit is receiving terminal, refers to distance between transmitting terminal and receiving terminal at a distance.Namely wireless charging unit and electronic equipment can use wired connection, also can by integrated for wireless charging unit be in the electronic device its charging.
In addition, the embodiment of the present invention can send the energy signal after precoding to a wireless charging unit by multiple radio frequency units simultaneously, and each like this radio frequency units still can make wireless charging unit receive energy signal when using lower transmitting power.Therefore, when the transmitting power of radio frequency units reduces, it is also lowered the radiation of surrounding environment.
Here should be noted that a bit: due to diversity, the uniqueness of wireless channel, the down channel that wireless charging unit place differences in spatial location causes is different, the energy signal that each radio frequency units sends arrives except all can not superpose Anywhere except wireless charging unit position, namely influence each other, become a noise signal.
Corresponding with said method embodiment, the embodiment of the present invention also provides a kind of wireless charging system, and its structural representation as shown in Figure 3, can comprise: at least one wireless charging unit 11, centralized control unit 12 and multiple radio frequency units 13.Wireless charging system is operated in TDD (TimeDivisionDuplexing in embodiments of the present invention, time division duplex) pattern, and in figure 3 for two wireless charging unit 11 and five radio frequency units 13, and provide the signal trend between three unit.Wherein,
Wireless charging unit 11, for sending the wireless channel detectable signal (uplink detection signal in Fig. 3) of up channel, wherein wireless channel detectable signal is used to indicate the channel condition information of up channel and the identity information of wireless charging unit 11, pilot frequency sequence and pseudo random sequence is carried in wireless channel detectable signal, pilot frequency sequence can be used for estimating the channel condition information of up channel, and pseudo random sequence is then used to indicate the identity information of wireless charging unit 11.
Radio frequency units 13, for the identity information of the channel condition information and wireless charging unit 11 that obtain up channel from wireless channel detectable signal, and for the match parameter sent according to centralized control unit 12, precoding is carried out to the energy signal in radio frequency units 13, through precoding energy signal after transmission by autofocus on wireless charging unit 11 position passed through of certification, with the electromagnetic wave energy making described wireless charging unit 11 extract transmission from the energy signal after precoding, and described electromagnetic wave energy is converted to electric energy for electronic equipment and charges, the wireless charging unit 11 that wherein certification is passed through carrys out certification by identity information.
Radio frequency units 13 is after receiving wireless channel detectable signal, and need from wireless channel detectable signal, extract up channel channel condition information and identity information, its process can be as follows:
First, from the wireless channel detectable signal that wireless charging unit 11 sends, pilot frequency sequence is extracted; Secondly, from pilot frequency sequence, channel condition information is estimated by algorithm for estimating.Wherein pilot frequency sequence is used to indicate the channel condition information of up channel, can be estimated amplitude information and the phase information of channel condition information by existing algorithm for estimating from pilot frequency sequence; Finally utilize signal sorting algorithm and in conjunction with channel condition information, from wireless channel detectable signal, extract pseudo random sequence, pseudo random sequence is for representing the identity information of wireless charging unit 11.
In embodiments of the present invention, pseudo random sequence is that wireless charging system is allocated in advance to wireless charging unit 11, and pseudo random sequence in each wireless charging unit 11 is different, distinguishes wireless charging unit 11 with this.And for the pseudo random sequence of the identity information that represents wireless charging unit 11 in wireless channel detectable signal with channel condition information convolution, from wireless channel detectable signal, extract pseudo random sequence if therefore want, by existing signal sorting algorithm, pseudo random sequence can be separated with channel condition information, thus obtain the pseudo random sequence of the identity information representing wireless charging unit 11.
Centralized control unit 12, for obtaining the match parameter of the radio frequency units group into each described wireless charging unit 11 selection based on channel condition information and channel calibration parameter, and the identity information of foundation wireless charging unit 11, search the wireless charging unit 11 that certification is passed through, and for dividing into groups to multiple radio frequency units 13 based on channel condition information, the channel calibration parameter often being organized radio frequency units 13 calibrates to obtain down channel to control each radio frequency units 13 according to the up channel of channel calibration parameter to self.
In embodiments of the present invention, legal identity information list is stored in centralized control unit 12, whether it is present in by searching obtained pseudo random sequence in the legal identity information list of local storage is carried out authenticate wireless charhing unit 11, if the pseudo random sequence obtained is present in the local legal identity information list stored, then judge that the authentication of wireless charging unit is passed through, otherwise judge that the authentication of wireless charging unit is not passed through.
In embodiments of the present invention, centralized control unit 12 based on channel condition information to the feasible pattern that multiple radio frequency units is divided into groups can be: the channel quality quality based on the up channel indicated by channel condition information is divided into groups to multiple radio frequency units 13, as radio frequency units 13 corresponding for better channel quality is divided into one group.Radio frequency units 13 corresponding for poor channel quality can also be abandoned in grouping process further, the workload of process can be reduced like this in subsequent processes, not only reduce complexity but also avoid the wasting of resources.
Often organized in the channel calibration parameter of radio frequency units 13 based on channel condition information, need to choose a radio frequency units 13 as with reference to radio frequency units often organizing in radio frequency units 13, compare with reference to the channel condition information of remaining radio frequency units 13 in radio frequency units and corresponding group, often organized the channel calibration parameter of radio frequency units 13.Wherein channel calibration parameter is used to indicate the channel condition information contrast situation in group between radio frequency units 13, therefore can be as the criterion with the channel condition information with reference to radio frequency units, in the channel calibration parameter of the reduced parameter will obtained when the channel condition information of remaining radio frequency units is consistent with the channel condition information with reference to radio frequency units in group as each radio frequency units.
Local calibration information is for transmitting element with the reference radio frequency units in all radio frequency units, residue radio frequency units is that receiving element is to obtain the local calibration information of receiving element relative to transmitting element, the like until obtain the local calibration information of each radio frequency units in all radio frequency units relative to other radio frequency units, and local calibration information obtains when wireless charging system is opened.
In first group, have 4 radio frequency units, be designated as radio frequency units 1, radio frequency units 2, radio frequency units 3 and radio frequency units 4 respectively, and radio frequency units 1 is with reference to radio frequency units.The local calibration information of radio frequency units 2 to 4 relative to radio frequency units 1 is compared with the channel condition information of radio frequency units 1 respectively, obtains the reduced parameter of the channel calibration parameter as each radio frequency units.
Accordingly, the down channel of each radio frequency units 13 can be then: h
i=h '
iθ
ican be calibrated the up channel of radio frequency units 13 by this formula, wherein h
ibe the channel condition information of the down channel of i-th radio frequency units 13, h '
ibe the channel condition information of the up channel of i-th radio frequency units 13, θ
iit is the channel calibration parameter of i-th radio frequency units 13.
When can make the energy signal of radio frequency units 13 after sending precoding to wireless charging unit 11 by above-mentioned calibrating mode, the down going channel of multiple radio frequency units 13 can be mated mutually.Still for above-mentioned 4 radio frequency units 13, if 4 radio frequency units 13 send the energy signal after precoding to a wireless charging unit 11 simultaneously, then the down going channel of above-mentioned 4 radio frequency units 13 is followed successively by: respective data feedback channel antenna and [1, θ
2, θ
3, θ 4] in corresponding element be multiplied, what namely can compensate that up-downgoing channel itself brings does not mate.
Further in embodiments of the present invention can according to following formula:
As can be seen from technique scheme, the wireless charging system that the embodiment of the present invention provides, based on channel condition information, the multiple radio frequency units 13 in wireless charging system are divided into groups, often organized the channel calibration parameter of radio frequency units 13 in conjunction with local calibration information, and calibrated according to the up channel of channel calibration parameter to radio frequency units 13.Then the match parameter of the radio frequency units group into each wireless charging unit 11 selection is obtained based on channel condition information and channel calibration parameter, according to match parameter, precoding is carried out to the energy signal in radio frequency units 13, energy signal after precoding autofocuses on wireless charging unit 11 position that certification is passed through after transmission, energy signal in wireless charging unit 11 is focused on strengthen, therefore when radio frequency units 13 and wireless charging unit 11 are distant, wireless charging unit 11 still can receive stronger electric energy and be supplied to electronic equipment, thus the long-range charging realized electronic equipment.
And the channel calibration parameter that the embodiment of the present invention can obtain based on channel condition information is calibrated up channel, make radio frequency units 13 that the channel condition information of real-time up channel can be utilized to obtain the channel condition information of down channel, then each radio frequency units 13 utilizes the channel condition information of down channel to send the energy signal after precoding to wireless charging unit 11, make the energy signal in wireless charging unit 11 focus on further to strengthen, thus electric energy can be provided for the wireless charging unit 11 in movement and the electronic equipment be connected thereof.
Illustrate a bit here: multiple radio frequency units 13 and centralized control unit 12 form transmitting terminal jointly, and wireless charging unit 11 is receiving terminals, refer to distance between transmitting terminal and receiving terminal at a distance.Namely wireless charging unit 11 and electronic equipment can use wired connection, also can by integrated for wireless charging unit 11 be that it charges in the electronic device.
In addition, the embodiment of the present invention can send the energy signal after precoding to a wireless charging unit 11 by multiple radio frequency units 13 simultaneously, and each like this radio frequency units 13 still can make wireless charging unit 11 receive energy signal when using lower transmitting power.Therefore, when the transmitting power of radio frequency units 13 reduces, it is also lowered the radiation of surrounding environment.
Here should be noted that a bit: communicated by optical fiber between radio frequency units 13 and centralized control unit 12.The down channel caused due to wireless charging unit 11 place differences in spatial location is different, the energy signal that each radio frequency units 13 sends arrives except all can not superpose Anywhere except wireless charging unit 11 position, namely influence each other, become a noise signal.
In embodiments of the present invention, the structural representation of above-mentioned wireless charging unit 11, centralized control unit 12 and radio frequency units 13 is also provided, as shown in Figure 4, it illustrates the structure of the radio frequency units 13 that the embodiment of the present invention provides, can comprise: radio signal reception module 131, radio channel characteristic extraction module 132, synchronization module 133, calibrate module 134, energy send pretreatment module 135, radio energy signal emission module 136, supply module 137 and control interface module 138.Wherein,
Radio signal reception module 131, for receive wireless charging unit 11 send wireless channel detectable signal.
Radio channel characteristic extraction module 132, for pilot frequency sequence from wireless channel detectable signal, from pilot frequency sequence, channel condition information is estimated by algorithm for estimating, and for utilizing signal sorting algorithm and in conjunction with channel condition information, from wireless channel detectable signal, extract pseudo random sequence, pseudo random sequence is for representing the identity information of wireless charging unit 11.
Synchronization module 133, for the multiple radio frequency units 13 of Timing Synchronization.Wherein Timing Synchronization refers to that the energy signal that multiple radio frequency units is launched is synchronous, so that the energy signal that each radio frequency units is launched arrives wireless charging unit simultaneously.
Calibrate module 134, for according to channel calibration parameter, calibrates to obtain down channel to the up channel of radio frequency units 13.
Energy sends pretreatment module 135, for carrying out precoding according to match parameter to the energy signal in radio frequency units 13, obtains the energy signal after precoding.
Radio energy signal emission module 136, for sending the energy signal after precoding.
Control interface module 138, for carrying out information interaction with centralized control unit 12.
Supply module 137, for providing electric energy for the modules in radio frequency units 13.
Fig. 5 shows the structure of the centralized control unit 12 that the embodiment of the present invention provides, and can comprise multiple control interface module 121, joint channel calibration module 122, grouping and Cooperation controlling module 123, jointly control module 124 and supply module 125.Wherein,
Each control interface module 121, for carrying out information interaction with radio frequency units 13, and the quantity of control interface module 121 is more than or equal to the quantity of radio frequency units 13.
Joint channel calibration module 122, for often being organized the channel calibration parameter of radio frequency units 13 based on channel condition information and local calibration information.
Grouping and Cooperation controlling module 123, for dividing into groups to multiple radio frequency units 13 based on channel condition information.
Jointly control module 124, for exchanging the data in radio frequency units 13 and centralized control unit 12, process and control.Such as above-mentionedly obtain each radio frequency units 13 match parameter, and send to radio frequency units to control radio frequency units match parameter and above-mentioned channel calibration parameter by optical fiber to carry out channel calibration, and certification is by wireless charging unit 11.
Supply module 125, for providing electric energy to the modules in centralized control unit 12.
In embodiments of the present invention, the supply module in radio frequency units 13 and centralized control unit 12 can be that modules is powered by electrical network, also can be solar energy, and the new forms of energy such as wind energy are powered for modules.
Fig. 6 shows the structure of the wireless charging unit 11 that the embodiment of the present invention provides, and can comprise: radio signal sending module 111, baseband processing module 112, data information management module 113, radio signal reception module 114, energy conversion module 115, energy management module 116 and Energy transmission interface module 117.Wherein,
Data information management module 113, for splicing identity information and the pilot frequency sequence of wireless charging unit 11, obtains digital signal.
Baseband processing module 112, for carrying out base band signal process to digital signal, obtain the wireless channel detectable signal of up channel, and trigger radio signal transmitting module 111 sends wireless channel detectable signal, wherein wireless channel detectable signal is used to indicate the channel condition information of up channel and the identity information of wireless charging unit 11.
Radio signal reception module 114, for receiving the energy signal after precoding.
Energy conversion module 115, for extracting electromagnetic wave energy from the energy signal after precoding, and carrying out rectification by electromagnetic wave energy, obtaining direct current.
Energy management module 116, for managing direct current and storing.
Energy transmission interface module 117, for galvanic Part I is supplied to radio signal sending module, and is supplied to mobile electronic device by galvanic Part II and charges.
In addition, the embodiment of the present invention additionally provides the structural representation of more above-mentioned modules, as shown in Figure 7, it illustrates the part-structure of radio signal reception module and radio channel characteristic extraction module in radio frequency units, can comprise: filter 21, low noise amplifier 22, automatic growth control 23, digital-to-analog converter 24, digital down converter 25, correlator 26, low pass filter 27, amplitude check circuit 28, phase shift inspection circuit 29 and pilot frequency sequence buffer 30; Wherein,
Filter 21, for realizing the bandpass filtering of received wireless channel detectable signal.
Low noise amplifier 22, for completing the amplification of received wireless channel detectable signal.
Automatic growth control 23, for obtaining stable wireless channel detectable signal.
Digital-to-analog converter 24, for the conversion of the wireless channel detectable signal of the wireless channel detectable signal to digital form that complete analog form.
Digital down converter 25, transforms to base band for the wireless channel detectable signal completing digital form from intermediate frequency.
Correlator 26, for the wireless channel detectable signal of digital form is relevant to the pilot frequency sequence stored from local pilot frequency sequence memory, to obtain channel condition information.
Low pass filter 27, for leaching the interference signal that correlator exports.
Amplitude check circuit 28, for obtaining the amplitude information of channel condition information.
Phase shift inspection circuit 29, for obtaining the phase information of channel condition information.
Pilot frequency sequence buffer 30, for storing the pilot frequency sequence extracted from channel condition information.
As shown in Figure 8, it illustrates the structure of certification and synchronization module in the radio frequency units that the embodiment of the present invention provides, can comprise: external clock interface 31, radio channel characteristic 32, amplitude/phase adjustment 33 and comparator 34.Wherein,
External clock interface 31, for receiving external clock time service.
Radio channel characteristic 32, for the output of respective channels feature extraction.The wherein channel characteristics mainly amplitude information of above-mentioned amplitude check circuit 28 acquisition and the phase information of phase shift inspection circuit 29 acquisition.
Amplitude/phase adjustment 33, for generation of synchronizing signal, this synchronizing signal carries amplitude information, phase information and timing information.
Comparator 34, the identity information stored for comparison this locality and the identity information of extraction, and by authentication result output port, comparison result is exported.
As shown in Figure 9, it illustrates the structure of radio energy signal emission module in radio frequency units in the embodiment of the present invention, can comprise: power amplifier 41, modulator 42, modulating oscillator 43, frequency range selector 44, frequency trim device 45, detector 46, buffer 47 and the main unit 48 that shakes.
Power amplifier 41, for carrying out power amplification to energy signal.
Modulator 42, for being modulated into the energy signal of selected frequency range.
Modulating oscillator 43, for generation of the frequency of corresponding frequency band.
Frequency range selector 44, for selecting corresponding frequency band.
Frequency trim device 45, for adjusting frequency deviation.
Detector 46, for detecting the frequency range correctness of generation.
The main unit 48 that shakes, for based on the frequency in the frequency range produce power signal selected by the frequency deviation in frequency range micro actuator 45 and frequency range selector 44.
As shown in Figure 10, it illustrates the structure of radio signal sending module in the wireless charging unit that the embodiment of the present invention provides, can comprise: power amplifier 51, modulator 52 and local pilot sequence generator 53.Wherein,
Power amplifier 51, for amplifying wireless channel detectable signal.
Modulator 52, obtains wireless channel detectable signal for carrying out modulation to pilot frequency sequence.
Local pilot sequence generator 53, for the whole section of pilot frequency sequence utilizing local pilot frequency sequence to produce pilot tone and certification.
As shown in figure 11, it illustrates the structure of radio reception module and energy conversion module in the wireless charging unit that the embodiment of the present invention provides, can comprise: band is logical/low pass filter 61, rectification circuit 62 and output filter 63, wherein,
Band leads to/low pass filter 61, for suppressing the higher mode of antenna shown in Figure 11 to enter rectification circuit, and enters antenna for the high order harmonic component stoping rectification circuit 62 to produce, with the energy loss avoiding the harmonious waveguide of higher mode to cause.
Rectification circuit 62, for completing energy signal to galvanic conversion.
Output filter 63, for exporting after the smoothing process of direct current.
As shown in figure 12, it illustrates grouping and the structure of Cooperation controlling module in the centralized control unit that the embodiment of the present invention provides, can comprise: radio channel characteristic memory 71, grouping bunch information output interface 72 and packeting controller 73, wherein
Radio channel characteristic memory 71, for storing the channel condition information that each radio frequency units transmits.
Grouping bunch information output interface 72, for dividing into groups to multiple radio frequency units based on channel condition information, and output grouping information.
Packeting controller 73, for carrying out the judgement of dividing into groups and selection.
As shown in figure 13, it illustrates the structure of joint channel calibration module in the centralized control unit that the embodiment of the present invention provides, can comprise: combined transceiving controller 81, calibrate 82, reference table 83 and processor 84, wherein,
Combined transceiving controller 81, for controlling the transmit-receive switch of each radio frequency units.
Calibrate 82, is used to indicate the calibration that each radio frequency units carries out up channel.
Reference table 83, for choosing corresponding channel calibration parameter combinations, as above-mentioned [1, θ
2, θ
3, θ
4].
Processor 84, for calculating corresponding channel calibration parameter.
Wherein alternative concentrated next radio frequency units transmission and alternative other radio frequency units concentrated receive in fig. 13 is calculate from wireless charging system start-up time the local calibration information often organized radio frequency units, start instruction be the start-up time of wireless charging system, traversal terminates then to be used to indicate the local calibration information whether obtaining all radio frequency units.
As Figure 14, it illustrates the structure jointly controlling module in the centralized control unit that the embodiment of the present invention provides, can comprise: core crosspoint 91, high-performance processor 92 and high performance controller 93, wherein,
Core crosspoint 91, for controlling and the exchanges data of radio frequency units and forwarding.
High-performance processor 92, processes for the data uploaded radio frequency units.
High performance controller 93, for controlling the up channel of each radio frequency units and working in coordination with and logical process of down channel.
It should be noted that, the icon in above-mentioned Fig. 7 to Figure 14
represent antenna, its transmission for signal and reception.Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For device class embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Secondly, it should be noted that, in this article, " grouping " is the concept of a broad sense, and that is in each group, the number of radio frequency units is the arbitrary value being less than or equal to all radio frequency units numbers.Such as, in a certain group, radio frequency units number is zero, then wireless charging system is described to wireless charging unit corresponding with it charging (certification not by or the reason such as wireless charging system is saturated); In a certain group, radio frequency units number equals wireless charging system radio frequency units number, then illustrate that wireless charging system distributes all radio frequency units for its charging to wireless charging unit corresponding with it.Different wireless charging unit can corresponding identical grouping, grouping that also can be corresponding different.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
To the above-mentioned explanation of the disclosed embodiments, those skilled in the art are realized or uses the present invention.To be apparent for a person skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a wireless charging method, is applied in wireless charging system, it is characterized in that, described wireless charging method comprises:
Obtain the channel condition information of the up channel of wireless charging unit in described wireless charging system and the identity information of described wireless charging unit;
Based on described channel condition information, the multiple radio frequency units in described wireless charging system are divided into groups, and the channel calibration parameter of radio frequency units is often organized based on described channel condition information and local calibration information, according to described channel calibration parameter, calibrate to obtain down channel to the up channel of described radio frequency units;
The match parameter of the radio frequency units group into each described wireless charging Unit selection is obtained based on described channel condition information and described channel calibration parameter, the wherein said match parameter obtaining each described radio frequency units based on described channel condition information and described channel calibration parameter, comprising:
According to formula
Obtain the match parameter of each described radio frequency units, wherein ω
ibe the match parameter of i-th radio frequency units, p
ibe the transmitting power of i-th radio frequency units, h
ifor described wireless charging unit is to the channel condition information of the down channel of i-th radio frequency units, N is total number of radio frequency units described in described wireless charging system;
According to the identity information of described wireless charging unit, search the described wireless charging unit that certification is passed through;
According to described match parameter, precoding is carried out to the energy signal in described radio frequency units, through the wireless charging unit position that the energy signal of precoding will autofocus on certification and passes through after transmission, with the electromagnetic wave energy making described wireless charging unit extract transmission from the energy signal after precoding, and described electromagnetic wave energy is converted to electric energy for electronic equipment and charges.
2. method according to claim 1, is characterized in that, the channel condition information of the up channel of wireless charging unit and the identity information of described wireless charging unit in the described wireless charging system of described acquisition, comprising:
Pilot frequency sequence is extracted from the wireless channel detectable signal that described wireless charging unit sends;
From described pilot frequency sequence, described channel condition information is estimated by algorithm for estimating;
Utilize signal sorting algorithm and in conjunction with described channel condition information, from described wireless channel detectable signal, extract pseudo random sequence, described pseudo random sequence is for representing the identity information of described wireless charging unit.
3. method according to claim 1, is characterized in that, is often organized the channel calibration parameter of radio frequency units, comprising based on described channel condition information and local calibration information:
Often to organize a radio frequency units in radio frequency units as with reference to radio frequency units, the described channel condition information with reference to remaining described radio frequency units in radio frequency units and corresponding group and local calibration information are compared, is often organized the channel calibration parameter of radio frequency units.
4. method according to claim 3, is characterized in that, described according to described channel calibration parameter, calibrates, comprising the up channel of described radio frequency units:
According to formula h
i=h '
iθ
ithe up channel of described radio frequency units is calibrated, wherein h
ifor the channel condition information of the down channel of described i-th radio frequency units, h '
ifor the channel condition information of the up channel of described i-th radio frequency units, θ
iit is the channel calibration parameter of i-th radio frequency units.
5. a wireless charging system, is characterized in that, described wireless charging system comprises: at least one wireless charging unit, centralized control unit and multiple radio frequency units; Wherein,
Described wireless charging unit, for sending the wireless channel detectable signal of up channel, described wireless channel detectable signal is used to indicate the channel condition information of described up channel and the identity information of described wireless charging unit;
Described radio frequency units, for the identity information of the channel condition information and described wireless charging unit that obtain described up channel from described wireless channel detectable signal, and for the match parameter sent according to described centralized control unit, precoding is carried out to the energy signal in described radio frequency units, through precoding energy signal after transmission by autofocus on the wireless charging unit position passed through of certification, with the electromagnetic wave energy making described wireless charging unit extract transmission from the energy signal after precoding, and described electromagnetic wave energy is converted to electric energy for electronic equipment and charges,
Described centralized control unit, for obtaining the match parameter of the radio frequency units group into each described wireless charging Unit selection based on described channel condition information and channel calibration parameter, and the identity information of foundation wireless charging unit, search the described wireless charging unit that certification is passed through, and for dividing into groups to described multiple radio frequency units based on described channel condition information and local calibration information, the channel calibration parameter often being organized radio frequency units calibrates to obtain down channel to control each described radio frequency units according to the up channel of described channel calibration parameter to self,
The wherein said match parameter obtaining each described radio frequency units based on described channel condition information and described channel calibration parameter, comprising:
According to formula
Obtain the match parameter of each described radio frequency units, wherein ω
ibe the match parameter of i-th radio frequency units, p
ibe the transmitting power of i-th radio frequency units, h
ifor described wireless charging unit is to the channel condition information of the down channel of i-th radio frequency units, N is total number of radio frequency units described in described wireless charging system.
6. system according to claim 5, it is characterized in that, described radio frequency units comprises: radio signal reception module, radio channel characteristic extraction module, synchronization module, calibrate module, energy send pretreatment module, radio energy signal emission module, supply module and control interface module; Wherein,
Described radio signal reception module, for receive described wireless charging unit send wireless channel detectable signal;
Described radio channel characteristic extraction module, for pilot frequency sequence from described wireless channel detectable signal, from described pilot frequency sequence, described channel condition information is estimated by algorithm for estimating, and for utilizing signal sorting algorithm and in conjunction with described channel condition information, from described wireless channel detectable signal, extract pseudo random sequence, described pseudo random sequence is for representing the identity information of described wireless charging unit;
Described synchronization module, for the multiple described radio frequency units of Timing Synchronization;
Described calibrate module, for according to described channel calibration parameter, calibrates to obtain down channel to the up channel of described radio frequency units;
Described energy sends pretreatment module, for carrying out precoding according to described match parameter to the energy signal in described radio frequency units, obtains the energy signal after precoding;
Described radio energy signal emission module, for sending the energy signal after precoding;
Described control interface module, for carrying out information interaction with described centralized control unit;
Described supply module, for providing electric energy for the modules in described radio frequency units.
7. system according to claim 5, is characterized in that, described centralized control unit comprises: multiple control interface module, joint channel calibration module, grouping and Cooperation controlling module, jointly control module and supply module; Wherein,
Each described control interface module, for carrying out information interaction with described radio frequency units, and the quantity of described control interface module is more than or equal to the quantity of described radio frequency units;
Described joint channel calibration module, for often being organized the channel calibration parameter of radio frequency units based on channel condition information and local calibration information;
Described grouping and Cooperation controlling module, for dividing into groups to described multiple radio frequency units based on described channel condition information;
Describedly jointly control module, for exchanging the data in described radio frequency units and described centralized control unit, process and control, to obtain the described wireless charging unit that each described wireless charging unit and the corresponding match parameter often organizing radio frequency units and certification are passed through;
Described supply module, for providing electric energy to the modules in described centralized control unit.
8. system according to claim 5, it is characterized in that, described wireless charging unit comprises: radio signal sending module, baseband processing module, data information management module, radio signal reception module, energy conversion module, energy management module and Energy transmission interface module; Wherein,
Described data information management module, for splicing identity information and the pilot frequency sequence of described wireless charging unit, obtains digital signal;
Described baseband processing module, for carrying out base band signal process to digital signal, obtain the wireless channel detectable signal of up channel, and trigger described radio signal sending module and send described wireless channel detectable signal, described wireless channel detectable signal is used to indicate the channel condition information of described up channel and the identity information of described wireless charging unit;
Described radio signal reception module, for receiving the energy signal after precoding;
Described energy conversion module, for extracting electromagnetic wave energy from the energy signal after precoding, and carrying out rectification by described electromagnetic wave energy, obtaining direct current;
Described energy management module, for managing described direct current and store;
Described Energy transmission interface module, for described galvanic Part I is supplied to described radio signal sending module, and is supplied to mobile electronic device by described galvanic Part II and charges.
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| CN104953672B (en) * | 2015-07-09 | 2017-09-22 | 郑州携能通信技术有限公司 | Information processing method, device and terminal in a kind of wireless charging system |
| KR20180069034A (en) | 2015-10-15 | 2018-06-22 | 오시아 인크. | Focusing Pulsed Transmission in Multipath Wireless Power Delivery Environments |
| CN108370367A (en) * | 2015-10-15 | 2018-08-03 | 欧希亚有限公司 | Focusing pulse transmission in multi-path wireless electric power delivery environment |
| CN106211336B (en) * | 2016-06-17 | 2020-03-10 | 深圳大学 | Multi-node distributed radio frequency wireless charging method |
| US10122204B2 (en) * | 2016-09-28 | 2018-11-06 | Intel Corporation | Techniques for wire-free charging |
| CN107070505B (en) * | 2016-11-04 | 2020-08-21 | 郑州携能通信技术有限公司 | Method and system for improving rectification efficiency and transmitting terminal |
| JP6967867B2 (en) * | 2017-04-04 | 2021-11-17 | キヤノン株式会社 | Power transmission equipment and its control method, as well as programs |
| KR102397287B1 (en) * | 2017-07-11 | 2022-05-13 | 삼성전자 주식회사 | Data communication method for wireless power supply and electronic device using the same |
| US10418861B2 (en) | 2017-12-22 | 2019-09-17 | Ossia Inc. | Transmission path identification based on propagation channel diversity |
| CN115208081B (en) * | 2022-09-15 | 2022-11-22 | 西南交通大学 | Wireless energy transmission method based on time reversal equal-space angle large-aperture array |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101689765A (en) * | 2007-06-29 | 2010-03-31 | 微软公司 | Inductive powering surface for powering portable devices |
| CN102007665A (en) * | 2007-10-30 | 2011-04-06 | 香港城市大学 | Localized charging, load identification and bi-directional communication methods for a planar inductive battery charging system |
| CN102823109A (en) * | 2010-04-13 | 2012-12-12 | 富士通株式会社 | Power supply system, power transmitter, and power receiver |
| CN103457363A (en) * | 2007-01-02 | 2013-12-18 | 捷通国际有限公司 | Inductive power supply with device identification |
| CN103545858A (en) * | 2012-07-11 | 2014-01-29 | 施洛莫·巴鲁克 | Remote wireless charging of battery-powered equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2479866B1 (en) * | 2002-06-10 | 2018-07-18 | City University of Hong Kong | Planar inductive battery charger |
-
2015
- 2015-02-16 CN CN201510084502.1A patent/CN104753131B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457363A (en) * | 2007-01-02 | 2013-12-18 | 捷通国际有限公司 | Inductive power supply with device identification |
| CN101689765A (en) * | 2007-06-29 | 2010-03-31 | 微软公司 | Inductive powering surface for powering portable devices |
| CN102007665A (en) * | 2007-10-30 | 2011-04-06 | 香港城市大学 | Localized charging, load identification and bi-directional communication methods for a planar inductive battery charging system |
| CN102823109A (en) * | 2010-04-13 | 2012-12-12 | 富士通株式会社 | Power supply system, power transmitter, and power receiver |
| CN103545858A (en) * | 2012-07-11 | 2014-01-29 | 施洛莫·巴鲁克 | Remote wireless charging of battery-powered equipment |
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